12645532 has 12 divisors (see below), whose sum is σ = 22172080. Its totient is φ = 6310656.

The previous prime is 12645509. The next prime is 12645533. The reversal of 12645532 is 23554621.

It is a self number, because there is not a number n which added to its sum of digits gives 12645532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432 + ... + 5047.

Almost surely, 2^12645532 is an apocalyptic number.

It is an amenable number.

12645532 is a deficient number, since it is larger than the sum of its proper divisors (9526548).

12645532 is a wasteful number, since it uses less digits than its factorization.

12645532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060 (or 6058 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 12645532 is about 3556.0556801040. The cubic root of 12645532 is about 232.9766350360.

The spelling of 12645532 in words is "twelve million, six hundred forty-five thousand, five hundred thirty-two".